A track defect detection device

Abstract

This utility model relates to the field of rail transit technology and discloses a track defect detection device, including a track inspection beam. Fixing frames are fixedly connected to the front and rear sides of the track inspection beam. Connecting blocks are fixedly connected to the left sides of each of the two fixing frames. A fixing mechanism is fixedly connected inside each of the two connecting blocks. A limiting mechanism is fixedly connected to the far side of each of the two fixing frames. Two detectors are fixedly connected to the far side of each of the two fixing frames. A rail is fixedly connected to the outside of the limiting mechanism. A base component is fixedly connected to the bottom end of the track inspection beam. The fixing mechanism includes two cleaning chambers. This utility model effectively solves the problem of inconvenient installation of cleaning components in track defect detection devices, improves the maintainability of the track defect detection device, and provides a reliable guarantee for the efficient and intelligent development of rail transit operation and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of rail transit technology, and in particular to a track defect detection device. Background Technology

[0002] Track defect detection devices are intelligent equipment used in the rail transit field to ensure the safe and stable operation of tracks. By integrating multiple sensor technologies such as laser, image, and vibration sensors, they collect key data in real time, including track geometry, surface defects, and vibration characteristics. Through signal processing and data analysis algorithms, they accurately identify track wear, cracks, deformation, loose fasteners, and other defects, and assess the type, location, and severity of these defects. This device is widely used in railways, subways, and light rail systems, enabling rapid track inspections without disrupting normal operations. It provides scientific data for rail transit maintenance departments, allowing for timely elimination of safety hazards, effectively reducing accident risks, and ensuring the safety, smoothness, and efficiency of train operation. This is of great significance for ensuring the long-term stable operation of rail transit systems.

[0003] A search revealed a utility model patent with publication number CN221366972U, which discloses a railway track surface defect detection component. The component includes a radar flaw detector and a main housing. A U-shaped plate is fixedly connected to the top of the main housing, and a shaft cylinder is fixedly connected to the top of the U-shaped plate. A first rotating rod is rotatably connected inside the shaft cylinder, and a swing rod is fixedly connected to the outer surface of the first rotating rod. A limit groove is formed on the swing rod, and a gear is fixedly connected to the end of the first rotating rod away from the shaft cylinder. A first shaft plate is fixedly connected to the top of the main housing, and a second rotating rod is rotatably connected inside the first shaft plate. A gear is fixedly connected to the end of the second rotating rod near the U-shaped plate. This utility model features a reciprocating swing flaw detection structure, allowing the detection instrument to perform reciprocating swing motion. This results in a large detection range, enabling the device to simultaneously detect sleepers and both sides of the track, and can detect even minor defects, thus increasing the service life of the track.

[0004] While the aforementioned patent utilizes a reciprocating oscillating flaw detection structure, enabling the detection instrument to perform reciprocating oscillation motion and achieving a larger detection range, allowing the device to simultaneously inspect sleepers and both sides of the track, and detect even minor defects, thus increasing the track's service life, the inconvenient installation of the cleaning components remains a problem. These cleaning components, as crucial for ensuring the long-term stable operation of the core sensors of the detection device, require cleaning of complex contaminants such as dust, gravel, and oil along the track. However, existing cleaning components are complex to install, increasing the workload and time costs for maintenance personnel. The complex installation process also limits the efficiency of rapid replacement of cleaning components, making it impossible to promptly replace damaged or malfunctioning cleaning components in emergency maintenance scenarios, thereby affecting the continuous and reliable operation of the track defect detection device. Therefore, a new track defect detection device is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a track defect detection device, which aims to improve the problem of inconvenient installation of cleaning components in existing track defect detection devices.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a track defect detection device, comprising a track inspection beam, with fixed frames fixedly connected to both the front and rear sides of the track inspection beam, connecting blocks fixedly connected to the left sides of both fixed frames, a fixing mechanism fixedly connected inside the two connecting blocks, a limit mechanism fixedly connected to the far side of the two fixed frames, two detectors fixedly connected to the far side of the two fixed frames, a rail fixedly connected to the outside of the limit mechanism, and a base component fixedly connected to the bottom end of the track inspection beam; the fixing mechanism includes two cleaning chambers, with the right sides of the two cleaning chambers fixedly connected to the left sides of the two connecting blocks, T-shaped blocks fixedly connected to the right sides of the two cleaning chambers, two rotating shafts fixedly connected to the bottom inner walls of the two connecting blocks, limit strips rotatably connected to the outside of multiple rotating shafts, triangular limit blocks fixedly connected to the top ends of the adjacent sides of the two limit strips, and auxiliary components fixedly connected to the outside of the limit strips.

[0007] Furthermore, the limiting mechanism includes multiple limiting chambers, with adjacent sides of the multiple limiting chambers fixedly connected to the distant sides of the two fixed frames. Two movable shafts are slidably connected to the inner walls of the distant sides of the multiple limiting chambers. Support rods are fixedly connected to the outer sides of the multiple movable shafts. Connecting shafts are rotatably connected to the inner walls of the bottom ends of the multiple support rods. Limiting wheels are fixedly connected to the outer sides of the adjacent sides of the two connecting shafts. Damping column one is fixedly connected to the adjacent sides of the two support rods. Damping column two is fixedly connected to the top ends of the adjacent sides of the two support rods. Fixing strip two is fixedly connected to the top ends of the multiple support rods. Two nuts are threadedly connected to the inner walls of the multiple fixing strip two.

[0008] Furthermore, the auxiliary components include multiple fixing strips, the outer surfaces of which are fixedly connected to the inner walls of multiple limiting strips. Two damping rods are rotatably connected to the adjacent sides of two fixing strips, and two damping rods are rotatably connected to the distant sides of two fixing strips. Slider blocks are slidably connected to the inner walls of the distant sides of two limiting strips. Pull rods are rotatably connected to the inner walls of multiple sliders. Control strips are rotatably connected to the tops of multiple pull rods. Moving blocks are fixedly connected to the left sides of multiple limiting strips. Two push rods are slidably connected to the inner walls of two connecting blocks. Moving disks are fixedly connected to the outer surfaces of multiple push rods. Fixed disks are slidably connected to the bottom outer surfaces of multiple push rods. Springs are sleeved on the outer surfaces of the middle ends of multiple push rods. Push blocks are fixedly connected to the bottom ends of multiple push rods. Cleaning strips are rotatably connected to the inner walls of two cleaning chambers.

[0009] Furthermore, the basic components include a control panel, the bottom of which is fixedly connected to the top of the track inspection beam, a motor is fixedly connected to the top of the track inspection beam, and multiple sleepers are fixedly connected to the bottom of the two rails.

[0010] Furthermore, the bottom ends of the multiple triangular limiting blocks are fixedly connected to the top ends of the two T-shaped blocks, the outer sides of the two T-shaped blocks are fixedly connected to the inner walls of the two connecting blocks, the opposite sides of the multiple damping rods are fixedly connected to the inner walls of the connecting blocks, and the outer sides of the multiple control strips are fixedly connected to the inner walls of the top ends of the two connecting blocks.

[0011] Furthermore, the bottom ends of the plurality of push blocks are slidably connected to the top ends of the plurality of moving blocks, the outer ends of the plurality of fixed disks are fixedly connected to the inner walls of the two connecting blocks, and the bottom ends of the plurality of springs are fixedly connected to the top ends of the plurality of fixed disks.

[0012] Furthermore, the external sliding connections of the plurality of limiting wheels are to the outside of the two rails, and the external sliding connections of the top ends of the plurality of support rods are to the inner walls of the plurality of limiting chambers.

[0013] Furthermore, the bottom ends of the plurality of fixing strips are fixedly connected to the top ends of the plurality of limiting chambers, and the external threads of the plurality of nuts are connected to the top ends of the plurality of limiting chambers.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the T-shaped block moves downward to press the triangular limiting block, and the triangular limiting block drives the limiting strip to rotate around the pivot. When the limiting strip rotates, the first damping rod pushes the limiting strip to reset, and the second damping rod pulls the limiting strip to assist in the reset, so as to fix the triangular limiting block to the T-shaped block, thereby facilitating the installation of the cleaning chamber. At the same time, the pull rod drives the control strip to provide limiting support for the limiting strip, preventing the limiting strip from moving, thus achieving the effect of quick installation and stable limiting of the cleaning chamber.

[0015] 2. In this utility model, the moving shaft drives the support rod to move, so that the support rod drives the limiting wheel to slide and connect with the outside of the rail. At the same time, the damping column one and the damping column two provide clamping force for the support rod, and the fixing strip two and the nut fix it to realize the connection between the device and the rail, thereby achieving the effect of stable connection between the device and the rail, reducing the shaking of the device during operation, and improving the accuracy and stability of track defect detection. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a track defect detection device proposed in this utility model; Figure 2 This is a schematic diagram of the cleaning chamber of a track defect detection device proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of the fixing frame of the track defect detection device proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point B in the middle; Figure 6 for Figure 4 Enlarged view of point C in the middle.

[0017] Legend: 1. Track inspection beam; 2. Fixing frame; 3. Connecting block; 4. Fixing mechanism; 41. Cleaning chamber; 42. T-block; 43. Rotating shaft; 44. Limiting strip; 45. Triangular limiting block; 46. ​​Auxiliary components; 461. Fixing bar one; 462. Damping rod one; 463. Damping rod two; 464. Slider; 465. Pull rod; 466. Control bar; 467. Moving block; 468. Push rod; 469. Fixing plate; 401. Moving plate; 402. Spring; 403. Push block; 404. Cleaning bar; 5. Limiting mechanism; 51. Limiting chamber; 52. Moving shaft; 53. Support rod; 54. Connecting shaft; 55. Limiting wheel; 56. Damping column one; 57. Damping column two; 58. Fixing strip two; 59. Nut; 6. Detector; 7. Railway rails; 8. Basic components; 81. Control panel; 82. Motor; 83. Sleepers Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] A track defect detection device, referring to Figures 1 to 3 The system includes a track inspection beam 1, with fixed brackets 2 fixedly connected to both the front and rear sides of the beam. The main function of the fixed brackets 2 is to provide installation support for other components. Connecting blocks 3 are fixedly connected to the left sides of both fixed brackets 2. The connecting blocks 3 are connected to the fixed brackets 2 using a double fixing method of embedded buckles and screws to ensure reliable connection. A fixing mechanism 4 is fixedly connected inside the two connecting blocks 3, which improves the efficiency of the inspection work. A limit mechanism 5 is fixedly connected to the far side of the two fixed brackets 2. The limit mechanism 5 can adaptively adjust according to the actual conditions of the rail 7, ensuring that the inspection device does not deviate or shake when running on the track, providing a stable inspection environment for the inspection instrument 6.

[0020] Specifically, the track inspection beam 1 serves as the basic load-bearing component, and provides installation support for the connecting block 3, fixing mechanism 4, and limiting mechanism 5 through the front and rear fixing frames 2. The connecting block 3 is double-fixed to the fixing frame 2 with embedded buckles and screws to ensure structural stability. The internal fixing mechanism 4 can easily install the cleaning chamber 41 to improve inspection efficiency. The limiting mechanism 5 on the other side of the fixing frame 2 can adapt to the condition of the rail 7. By adjusting the position of the limiting wheel 55 and reducing vibration, it ensures the stable operation of the inspection device and creates a reliable inspection environment for the inspection instrument 6.

[0021] Two detectors 6 are fixedly connected to the far sides of the two fixed frames 2. The detectors 6 include various types such as laser rangefinders, high-definition cameras, and ultrasonic flaw detectors, used to detect the geometric dimensions, surface damage, and internal defects of the track, respectively. A rail 7 is fixedly connected to the external side of the limiting mechanism 5; the rail 7 is the object of track defect detection. A foundation component 8 is fixedly connected to the bottom end of the track inspection beam 1. The foundation component 8 is the control and power core of the entire detection device; its stable operation ensures the smooth progress of the detection work. The fixing mechanism 4 includes two cleaning chambers 41, used to remove dust, gravel, and other debris from the track surface, improving the accuracy of the detection data. The right sides of the two cleaning chambers 41 are fixedly connected to the left sides of the two connecting blocks 3. This fixed connection method allows the cleaning chambers 41 to be securely installed on the connecting blocks 3 and form an organic whole with the entire detection device.

[0022] Specifically, the track inspection beam 1 is supported by the fixed frame 2 and is equipped with various inspection instruments 6, including a laser rangefinder, a high-definition camera, and an ultrasonic flaw detector, which are used to detect track geometry, surface damage, and internal defects, respectively. The limiting mechanism 5 is connected to the rail 7 to ensure stable operation of the device. The basic component 8 provides control and power. The cleaning chamber 41 in the fixed mechanism 4 is installed on the connecting block 3 to improve the accuracy of the inspection data by removing track debris. All parts work together to complete the detection of track defects.

[0023] T-shaped blocks 42 are fixedly connected to the right side of each of the two cleaning chambers 41. These T-shaped blocks 42 are key components connecting the cleaning chambers 41 to the fixing mechanism 4, ensuring the stability of the cleaning chambers 41 after fixing. Two rotating shafts 43 are fixedly connected to the inner wall of the bottom of each of the two connecting blocks 3. The rotating shafts 43 are cylindrical metal shafts, with both ends fixed to the inner wall of the connecting block 3 via bearings, allowing for flexible rotation. Limiting strips 44 are rotatably connected to the outside of each of the multiple rotating shafts 43. These limiting strips 44 are long strip-shaped metal plates that rotate around the rotating shafts 43, ensuring accurate operation when fixing and disassembling the cleaning chambers 41. Triangular limiting blocks 45 are fixedly connected to the top of each adjacent side of the two limiting strips 44, allowing the triangular limiting blocks 45 to fit tightly against the side of the T-shaped blocks 42. An auxiliary component 46 is fixedly connected to the outside of the limiting strips 44.

[0024] Specifically, the cleaning chamber 41 is connected to the fixing mechanism 4 via the T-shaped block 42 on the right side. The rotating shaft 43 on the inner wall of the connecting block 3 supports the rotation of the limiting strip 44. The limiting strip 44 drives the triangular limiting block 45 at the top to fit tightly with the T-shaped block 42 to achieve fixation. The auxiliary component 46 ensures the accurate operation of the limiting strip 44, together ensuring the stability and accuracy of the installation and disassembly of the cleaning chamber 41.

[0025] The auxiliary component 46 enables precise control of the position and angle of the limiting strip 44, ensuring that the fixing mechanism 4 can reliably fix and release the cleaning chamber 41. The auxiliary component 46 includes multiple fixing strips 461, each a long strip of metal plate fixed to the inner wall of the limiting strip 44 for connecting internal components. The multiple fixing strips 461 are externally fixed to the inner walls of the multiple limiting strips 44, allowing them to move synchronously during the rotation of the limiting strip 44. Two damping rods 463 are rotatably connected to the adjacent sides of two fixing strips 461. The damping rods 463 provide damping force during the rotation of the limiting strip 44 and also stabilize the limiting strip 44 after fixing the cleaning chamber 41. Two damping rods 462 are rotatably connected to the distant sides of two fixing strips 461, primarily providing appropriate damping force when the limiting strip 44 rotates in the opposite direction. The damping rod 462 and damping rod 463 work together to make the limiting bar 44 more stable and controllable during rotation.

[0026] Specifically, the auxiliary component 46 is connected to the damping rod 462 and the damping rod 463 by the fixing rod 461 fixed to the inner wall of the limiting strip 44. The two damping rods provide damping force when the limiting strip 44 rotates in the opposite direction and when the cleaning chamber 41 is fixed, and cooperate with each other to achieve precise control of the position and angle of the limiting strip 44, and ensure that the fixing mechanism 4 can reliably fix and release the cleaning chamber 41.

[0027] Each of the two limiting bars 44 has a slider 464 slidably connected to its inner wall on the opposite side. The slider 464 is a rectangular block structure that can slide in the grooves on the inner wall of the limiting bar 44. Each of the sliders 464 has a pull rod 465 rotatably connected to its inner wall. The linear motion of the pull rods 465 and the sliders 464 controls the rotation of the limiting bar 44. Each of the pull rods 465 has a control bar 466 rotatably connected to its top end. The control bar 466 is fixed at both ends to the inner wall of the connecting block 3 and can slide vertically. Each of the limiting bars 44 has a moving block 467 fixedly connected to its left side. The moving block 467 is located on the left side of the limiting bar 44 and is used to receive thrust from other components. Each of the two connecting blocks 3 has two push rods 468 slidably connected to its inner wall. The push rods 468 are cylindrical metal rods that can slide in the guide holes on the inner wall of the connecting block 3.

[0028] Specifically, slider 464 slides in the groove on the inner wall of limit bar 44, driving pull rod 465 to move, thereby controlling control bar 466 to slide vertically on the inner wall of connecting block 3. At the same time, push rod 468 slides in the guide hole on the inner wall of connecting block 3, transmitting force to moving block 467. Multiple components work together to achieve precise control of the rotation of limit bar 44.

[0029] Multiple push rods 468 are each fixedly connected to a movable disk 401, which is a circular metal disk. The movable disk 401 provides guidance and support for the movement of the push rods 468 during their movement. A fixed disk 469, also a circular metal disk, is slidably connected to the bottom of each push rod 468 and is fixed to the inner wall of the connecting block 3, providing sliding guidance for the push rods 468. A spring 402 is fitted around the middle of each push rod 468. When the push rod 468 is subjected to pressure and moves downwards, the spring 402 is compressed and stores elastic potential energy. When the pushing force disappears, the spring 402 releases the elastic potential energy to push the push rod 468 back to its original position. A push block 403 is fixedly connected to the bottom of each push rod 468. The push block 403 is used to push the movable block 467 to rotate the limiting strip 44. Cleaning strips 404 are rotatably connected to the inner walls of both cleaning chambers 41. The cleaning strips 404 are used to clean debris from the track surface.

[0030] Specifically, when push rod 468 moves, moving disk 401 and fixed disk 469 provide guidance. Spring 402 stores elastic potential energy when compressed, and releases the potential energy after the thrust disappears to reset push rod 468. Push block 403 at the bottom of push rod 468 pushes moving block 467 to drive limit strip 44 to rotate. At the same time, cleaning strip 404 on the inner wall of cleaning chamber 41 cleans debris on the track surface by rotating, ensuring the testing environment.

[0031] Reference Figure 4 and Figure 6 The limiting mechanism 5 includes multiple limiting chambers 51. The adjacent sides of the multiple limiting chambers 51 are fixedly connected to the distant sides of two fixed frames 2. The fixed frames 2 provide a reliable mounting base for the limiting chambers 51, allowing the limiting mechanism 5 to be firmly attached to the detection device. Two movable shafts 52 are slidably connected to the inner walls of the distant sides of each of the multiple limiting chambers 51. The movable shafts 52 are cylindrical metal shafts that fit tightly with guide rails on the inner walls of the limiting chambers 51, allowing for flexible sliding within the guide rails. Support rods 53 are fixedly connected to the outside of each of the multiple movable shafts 52. The support rods 53 transmit the movement of the movable shafts 52 to the internally connected components. Connecting shafts 54 are rotatably connected to the inner walls of the bottom ends of each of the multiple support rods 53. The two ends of the connecting shafts 54 are connected to the inner walls of the bottom ends of the support rods 53 via bearings, allowing for 360-degree free rotation.

[0032] Specifically, the fixed frame 2 provides an installation base for the limiting chamber 51. The movable shaft 52 inside the limiting chamber 51 cooperates with the rail 7 to achieve flexible sliding, driving the externally fixed support rod 53 to move. The connecting shaft 54, which is rotatably connected to the inner wall of the bottom end of the support rod 53, can rotate freely 360 degrees through the bearing, providing a rotation base for the operation of subsequent components.

[0033] Limiting wheels 55 are fixedly connected to the outer sides of the two connecting shafts 54 on adjacent sides. The limiting wheels 55 are connected to the support rods 53 through the connecting shafts 54. When the detection device is running, they roll close to the side of the rail 7, which helps to limit the lateral movement of the detection device. Damping columns 1 and 56 are fixedly connected to the adjacent sides of the two support rods 53. Damping columns 1 and 56 are hydraulic damping structures filled with damping oil. Their two ends are fixedly connected to the two support rods 53 respectively to provide clamping force for the support rods 53. Damping columns 2 and 57 are fixedly connected to the top of the adjacent sides of the two support rods 53. Damping columns 2 and 56 cooperate with each other to protect the precision components such as the detector 6 from vibration. Fixing strips 2 and 58 are fixedly connected to the top of multiple support rods 53. When the moving shaft 52 moves the support rods 53 to the appropriate position, the fixing strips 2 and 58 lock the support rods 53 on the limiting chamber 51 to prevent the support rods 53 from shifting during the detection process. The inner walls of multiple fixing strips 58 are each threaded with two nuts 59. By tightening the nuts 59, the fixing strips 58 can be pressed tightly against the top of the limiting chamber 51, thereby fixing the position of the support rod 53.

[0034] Specifically, the limiting wheel 55 is connected to the support rod 53 via the connecting shaft 54. During testing, it moves laterally against the side of the rail 7 to limit the movement of the device. The damping column 1 56 and the damping column 2 57 work together to provide buffering and shock absorption for the support rod 53, protecting the precision components. After the moving shaft 52 drives the support rod 53 to be adjusted into place, the nut 59 is tightened to lock the support rod 53 onto the limiting chamber 51 by the fixing bar 2 58, ensuring that the position of the support rod 53 is stable during the testing process.

[0035] Reference Figure 1 and Figure 3 The basic component 8 includes a control panel 81, which is an industrial-grade touchscreen display equipped with a high-performance embedded control system, providing data processing, interface display, and command transmission functions. The bottom of the control panel 81 is fixedly connected to the top of the track inspection beam 1, ensuring a stable installation at the core of the detection device for easy viewing and operation by personnel. A motor 82 is fixedly connected to the top of the track inspection beam 1. The motor 82 can adjust its speed according to commands sent by the control panel 81, enabling the detection device to move forward, backward, accelerate, and decelerate. Multiple sleepers 83 are fixedly connected to the bottom of the two rails 7. The sleepers 83 serve to distribute the pressure on the rails 7, maintain the spacing and stability of the rails 7, and their elastic structure can buffer the impact force generated when a train passes.

[0036] Specifically, in the basic component 8, the control screen 81 is installed on the top of the track inspection beam 1 as an industrial-grade touch screen display. It realizes data processing and command transmission through a high-performance embedded control system, which is convenient for operators to operate. The motor 82 adjusts its speed according to the command of the control screen 81 to drive the detection device to run. The sleepers 83 under the rail 7 disperse pressure and keep the rail 7 stable by means of elastic structure, buffer the impact of the train, and provide a stable track foundation for the detection device.

[0037] The bottom ends of multiple triangular limiting blocks 45 are fixedly connected to the top ends of two T-shaped blocks 42. When the limiting strip 44 rotates, the triangular limiting blocks 45 rotate accordingly and engage with the slots of the T-shaped blocks 42. The wedge-shaped locking force generated by the inclined plane fixes the T-shaped blocks 42, thereby achieving quick installation and locking of the cleaning chamber 41. The external parts of the two T-shaped blocks 42 are fixedly connected to the inner walls of the two connecting blocks 3. The connecting blocks 3 provide a stable mounting base for the T-shaped blocks 42, enabling the T-shaped blocks 42 to withstand the weight of the cleaning chamber 41 and the locking force of the triangular limiting blocks 45, ensuring the overall stability of the fixing mechanism 4. The opposite sides of multiple damping rods 462 are fixedly connected to the inner walls of the connecting blocks 3. When the limiting strip 44 rotates or is impacted by external force, the damping rods 462 consume energy through the flow of internal damping oil, slowing down the movement speed of the limiting strip 44 and suppressing its vibration amplitude.

[0038] Specifically, the rotation of the limiting strip 44 causes the triangular limiting block 45 to engage with the slot of the T-shaped block 42, and the cleaning chamber 41 is fixed by the wedge locking force. The connecting block 3 provides a stable base for the T-shaped block 42 to ensure the stability of the fixing mechanism 4. At the same time, the damping rod 462 on the inner wall of the connecting block 3 slows down the speed and suppresses the vibration by damping oil when the limiting strip 44 rotates or is impacted.

[0039] Multiple control bars 466 are externally fixedly connected to the inner walls of the top ends of two connecting blocks 3. The control bars 466 act as force transmission hubs, receiving the pulling force of the pull rod 465 and converting it into a pushing force on the push rod 468, causing the push rod 468 to slide within the connecting block 3. The bottom ends of multiple push blocks 403 are externally slidably connected to the outer top ends of multiple moving blocks 467. When the push rod 468 slides downwards under the push of the control bars 466, the push blocks 403 transmit the pushing force to the moving blocks 467, causing the limiting bar 44 to rotate around the pivot 43. Multiple fixed discs 469 are externally fixedly connected to the inner walls of the two connecting blocks 3. The fixed discs 469 provide support points for the spring 402, limiting its radial displacement, and simultaneously provide sliding guidance for the push rod 468, ensuring that the push rod 468 moves in a straight line when under force, maintaining the relative positional stability of the components of the fixing mechanism 4.

[0040] Specifically, the control bar 466 is fixed to the inner wall of the top of the connecting block 3, and receives the pulling force of the pull rod 465 and converts it into the pushing force of the push rod 468, so that the push rod 468 slides in the connecting block 3. When the push rod 468 slides down, the push block 403 transmits the force to the moving block 467, which drives the limit bar 44 to rotate around the rotating shaft 43. The fixed plate 469 provides support and guidance for the spring 402 and the push rod 468, ensuring the stability of the position of each component of the fixed mechanism 4.

[0041] Multiple springs 402 are fixedly connected at their bottom ends to the top ends of multiple fixed discs 469. The presence of springs 402 provides buffering and automatic reset functions for push rods 468, reducing rigid collisions between components and ensuring the stability and reliability of the fixed mechanism 4's operation. Multiple limit wheels 55 are externally slidably connected to the outside of two rails 7. The rubber outer layer of the limit wheels 55 is tightly fitted to the side of the rails 7, achieving a sliding connection through rolling friction. The top ends of multiple support rods 53 are externally slidably connected to the inner walls of multiple limiting chambers 51. The top ends of the support rods 53 are designed with guide sliders 464, which form a sliding fit with the guide rails on the inner walls of the limiting chambers 51, allowing them to slide up and down within the limiting chambers 51. The bottom ends of multiple fixing strips 58 are fixedly connected to the top ends of multiple limiting chambers 51. The fixing strips 58 provide fixing force points for the support rods 53, and cooperate with nuts 59 to firmly lock the adjusted support rods 53 onto the limiting chambers 51. Multiple nuts 59 are externally threaded and connected to the top of multiple limiting chambers 51. The nuts 59 are screwed into the threaded holes on the fixing bar 58. The axial pressure generated by tightening the nuts 59 secures the fixing bar 58, the support rod 53 and the limiting chamber 51 together.

[0042] Specifically, the bottom end of the spring 402 is fixed to the top of the fixed plate 469, providing a buffer and reset function for the push rod 468, ensuring the stability and reliability of the fixing mechanism 4; the limit wheel 55 is slidably connected to the rail 7 through the rubber outer layer; after the support rod 53 slides up and down to adjust its position in the limit chamber 51, the fixing strip 58 and the nut 59 cooperate, and the axial pressure is generated by the thread engagement, which fastens the support rod 53 to the limit chamber 51.

[0043] The implementation principle of this application embodiment is as follows: When the cleaning chamber 41 needs to be installed, the T-shaped block 42 moves downward to press the triangular limiting block 45. The triangular limiting block 45 drives the limiting strip 44 to rotate around the rotating shaft 43. When the limiting strip 44 rotates, the damping rod 1 462 and the damping rod 2 463 provide a restoring force for the limiting strip 44, ensuring the accuracy and stability of the triangular limiting block 45 in fixing the T-shaped block 42. At the same time, the control strip 466 is pulled, and the control strip 466 drives the pull rod 465 to move upward. When the pull rod 465 moves upward, it drives the slider 464 to slide on the inner wall of the limiting strip 44. After adjusting to a suitable position, the control strip 466 is rotated. The control strip 466 rotates around the top of the pull rod 465 and engages with the top of the connecting block 3, effectively fixing the position of the limiting strip 44 to avoid shaking and affecting the installation effect, thus completing the fixed installation of the cleaning chamber 41.

[0044] When released, press the push rod 468. The push rod 468 moves down and pushes the push block 403. The push block 403 slides and contacts the moving block 467, pushing the moving block 467 to move. The movement of the moving block 467 drives the limit strip 44 to rotate around the pivot 43, thereby driving the triangular limit block 45 to release the T-shaped block 42. At the same time, the spring 402 provides a restoring force for the push rod 468, thus achieving the effect of quick, convenient and stable installation of the cleaning chamber 41, enabling the cleaning strip 404 to effectively clean foreign objects on the track surface and reduce the interference of foreign objects on the detection results of the detector 6.

[0045] When the device needs to be connected to the rail 7, the moving shaft 52 slides on the inner wall of the limiting chamber 51 on the opposite side, driving the externally fixed support rod 53 to adjust its position. The connecting shaft 54, which is rotatably connected to the inner wall of the bottom end of the support rod 53, moves accordingly, thereby driving the limiting wheel 55 fixed to the outside of the connecting shaft 54 ​​to contact and slide with the outside of the rail 7. During the connection process, the damping column 56 fixed on the side close to the support rod 53 and the damping column 57 fixed at the top end can provide clamping force for the movement of the support rod 53. After the position is adjusted, the nut 59 connected to the inner wall of the fixing bar 58 is rotated to tighten the nut 59 with the threaded engagement at the top end of the limiting chamber 51, fixing the fixing bar 58 and the support rod 53 on the limiting chamber 51, thus completing the stable connection between the device and the rail 7. This achieves the effect of stable connection and smooth operation of the device and the rail 7, effectively avoiding problems such as shaking and deviation when the device is running on the track, and ensuring that the detector 6 can accurately and stably detect track defects.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A track defect detection device, comprising a track inspection beam (1), characterized in that: The track inspection beam (1) is fixedly connected to the front and rear sides with fixed frames (2), and the left sides of the two fixed frames (2) are fixedly connected to connecting blocks (3). The interior of the two connecting blocks (3) is fixedly connected to a fixing mechanism (4). The far side of the two fixed frames (2) is fixedly connected to a limiting mechanism (5). The far side of the two fixed frames (2) is fixedly connected to two detectors (6). The outside of the limiting mechanism (5) is fixedly connected to a rail (7). The bottom end of the track inspection beam (1) is fixedly connected to a foundation component (8). The fixing mechanism (4) includes two cleaning chambers (41). The right side of the two cleaning chambers (41) is fixedly connected to the left side of the two connecting blocks (3). T-shaped blocks (42) are fixedly connected to the right side of each of the two cleaning chambers (41). Two rotating shafts (43) are fixedly connected to the bottom inner wall of each of the two connecting blocks (3). Limiting strips (44) are rotatably connected to the outside of the multiple rotating shafts (43). Triangular limiting blocks (45) are fixedly connected to the top of the adjacent side of the two limiting strips (44). An auxiliary component (46) is fixedly connected to the outside of the limiting strips (44).

2. The track defect detection device according to claim 1, characterized in that: The limiting mechanism (5) includes multiple limiting chambers (51). The adjacent sides of the multiple limiting chambers (51) are fixedly connected to the opposite sides of the two fixed frames (2). The inner walls of the opposite sides of the multiple limiting chambers (51) are slidably connected to two moving shafts (52). The outer sides of the multiple moving shafts (52) are fixedly connected to support rods (53). The inner walls of the bottom ends of the multiple support rods (53) are rotatably connected to connecting shafts (54). The outer sides of the adjacent sides of the two connecting shafts (54) are fixedly connected to limiting wheels (55). The adjacent sides of the two support rods (53) are fixedly connected to damping column one (56). The top ends of the adjacent sides of the two support rods (53) are fixedly connected to damping column two (57). The top ends of the multiple support rods (53) are fixedly connected to fixing strip two (58). The inner walls of the multiple fixing strip two (58) are threaded with two nuts (59).

3. The track defect detection device according to claim 1, characterized in that: The auxiliary component (46) includes multiple fixing bars (461), which are externally fixed to the inner walls of multiple limiting bars (44). Two damping rods (463) are rotatably connected to the adjacent sides of two fixing bars (461), and two damping rods (462) are rotatably connected to the distant sides of two fixing bars (461). Sliding blocks (464) are slidably connected to the inner walls of the distant sides of two limiting bars (44). Pull rods (465) are rotatably connected to the inner walls of multiple sliding blocks (464), and the tops of multiple pull rods (465) are rotatably connected to... The control bar (466) and the left side of the multiple limit bars (44) are all fixedly connected to a moving block (467). The inner walls of the two connecting blocks (3) are all slidably connected to two push rods (468). The outer sides of the multiple push rods (468) are all fixedly connected to a moving disk (401). The outer bottom ends of the multiple push rods (468) are all slidably connected to a fixed disk (469). The middle ends of the multiple push rods (468) are all sleeved with springs (402). The bottom ends of the multiple push rods (468) are all fixedly connected to a push block (403). The inner walls of the two cleaning chambers (41) are all rotatably connected to a cleaning strip (404).

4. The track defect detection device according to claim 1, characterized in that: The basic component (8) includes a control panel (81), the bottom of which is fixedly connected to the top of the track inspection beam (1), and a motor (82) is fixedly connected to the top of the track inspection beam (1). Multiple sleepers (83) are fixedly connected to the bottom of the two rails (7).

5. The track defect detection device according to claim 3, characterized in that: The bottom ends of the multiple triangular limiting blocks (45) are fixedly connected to the top ends of the two T-shaped blocks (42), the exterior of the two T-shaped blocks (42) is fixedly connected to the inner walls of the two connecting blocks (3), the opposite sides of the multiple damping rods (462) are fixedly connected to the inner walls of the connecting blocks (3), and the exterior of the multiple control strips (466) is fixedly connected to the top inner walls of the two connecting blocks (3).

6. The track defect detection device according to claim 3, characterized in that: The bottom ends of the plurality of push blocks (403) are slidably connected to the top ends of the plurality of moving blocks (467), the outside of the plurality of fixed disks (469) are fixedly connected to the inner walls of the two connecting blocks (3), and the bottom ends of the plurality of springs (402) are fixedly connected to the top ends of the plurality of fixed disks (469).

7. The track defect detection device according to claim 2, characterized in that: The external slidable connections of the plurality of limiting wheels (55) are to the outside of the two rails (7), and the external slidable connections of the top ends of the plurality of support rods (53) are to the inner walls of the plurality of limiting chambers (51).

8. The track defect detection device according to claim 2, characterized in that: The bottom ends of the multiple fixing bars (58) are fixedly connected to the top ends of the multiple limiting chambers (51), and the external threads of the multiple nuts (59) are connected to the top ends of the multiple limiting chambers (51).

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